53355655321 has 2 divisors, whose sum is σ = 53355655322. Its totient is φ = 53355655320.

The previous prime is 53355655291. The next prime is 53355655351. The reversal of 53355655321 is 12355655335.

It is a happy number.

53355655321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (53355655291) and next prime (53355655351).

It can be written as a sum of positive squares in only one way, i.e., 41448480921 + 11907174400 = 203589^2 + 109120^2 .

It is a cyclic number.

It is not a de Polignac number, because 53355655321 - 2¹⁹ = 53355131033 is a prime.

It is a super-2 number, since 2×53355655321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53355655351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26677827660 + 26677827661.

It is an arithmetic number, because the mean of its divisors is an integer number (26677827661).

Almost surely, 2^53355655321 is an apocalyptic number.

It is an amenable number.

53355655321 is a deficient number, since it is larger than the sum of its proper divisors (1).

53355655321 is an equidigital number, since it uses as much as digits as its factorization.

53355655321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1012500, while the sum is 43.

The spelling of 53355655321 in words is "fifty-three billion, three hundred fifty-five million, six hundred fifty-five thousand, three hundred twenty-one".